I know it's not your fault :p As long as you know where to look, it may be easier to see in in person than in a picture, anyways.
And I know nothing about breeding fish or fish babies, but maybe it's a little bit like human babies? The egg spot is small, but maybe it like dilates or something before they hatch? The baby is usually larger then where they come out. I'm totally not trying to be graphic, haha!
But I would probably ask someone who knows something about spawning and releasing eggs because I sure don't know. Just a possibility, I guess.